When an iron nail gets rusted, iron oxide is formed
1 Without any change in the weight of the nail
2 With increase in the weight of the nail
3 With decrease in the weight of the nail
4 None of these
Which of the following is used as a coolant in nuclear reactors? 1 Heavy water 2 Cadmium 3 Liquid sodium 4 None of these
2 Answers WBCS West Bengal Civil Service,
What is one light hour?
NO OF PLANT IN ONGC
infra-red rays were first detected by? the intensity level of sound is measured in? the material used for a fuse wire should? radioactivity is a property of? what is the source of electric energy in an artificial satellite? the following is used as a lubricant in heavy machines? supher, bauxite , graphite, phosphorus
What is the growth ?
Which of the following gases is used as an illuminant in lamps used by hawkers? 1 Methane 2 Ethylene 3 Acetylene 4 Hydgrogen
what are the advantages of interrupt and exception?
At which place will second centre of the indian institute of science be opened?
The type of glass used in making lenses and prisms is 1 Soft glass 2 Pyrex glass 3 Jena glass 4 Flint glass
which of the following fibers is generally preferred for making gauze and lint? 1 Cotton 2 Rayon 3 Nylon 4 Terylene
which among the followings is found chlorophyll ?
what are disadvantages of interrupt and exception?